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Professor of biology Jerry Coyne sums up biological evolution succinctly: [3]. Life on Earth evolved gradually beginning with one primitive species – perhaps a self-replicating molecule – that lived more than 3.5 billion years ago; it then branched out over time, throwing off many new and diverse species; and the mechanism for most (but not all) of evolutionary change is natural selection.
"Sociobiology is now part of the core research and curriculum of virtually all biology departments, and it is a foundation of the work of almost all field biologists. " Sociobiological research on nonhuman organisms has increased dramatically and continuously in the world's top scientific journals such as Nature and Science .
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Prejudice is often associated with discrimination, which, in the colloquial sense, means the active and explicit exclusion and derogation of a group based on preconceived and/or unfounded judgments. Although this type of discrimination certainly exists, an evolutionary perspective does not necessarily justify its presence.
Evolutionary progress as a tree of life. Ernst Haeckel, 1866 Lamarck's two-factor theory involves 1) a complexifying force that drives animal body plans towards higher levels (orthogenesis) creating a ladder of phyla, and 2) an adaptive force that causes animals with a given body plan to adapt to circumstances (use and disuse, inheritance of acquired characteristics), creating a diversity of ...
Prejudice is a legal term with different meanings, which depend on whether it is used in criminal, civil, or common law. In legal context, prejudice differs from the more common use of the word and so the term has specific technical meanings. Two of the most common applications of the word are as part of the terms with prejudice and without ...
a short history of speciesism", defining it as "a prejudice or attitude of bias in favour of the interests of members of one's own species and against those of members of other species": Racists violate the principle of equality by giving greater weight to the interests of members of their own race when there is a clash between their interests ...
The evolution of biological complexity is one important outcome of the process of evolution. [1] Evolution has produced some remarkably complex organisms – although the actual level of complexity is very hard to define or measure accurately in biology, with properties such as gene content, the number of cell types or morphology all proposed as possible metrics.